InfraNode

infranode.dev

A free, keyless REST API and MCP server that aggregates open data (weather, air quality, transit, EV charging, electricity prices, demographics and more) for 84 major German cities behind one normalized JSON interface.

The InfraNode API uses none authentication; has free pricing; offers a free tier (Fully free and keyless, no sign-up; calls rate-limited per IP); rate limits: 300 requests per minute per IP; exceeding returns HTTP 429, every response carries RateLimit headers. Verified 2026-07-08 with per-field source links.

Data & Enrichment Verified 2026-07-08 high confidence

Base URL

https://infranode.dev/api/v1

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Auth

none

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Free tier

Fully free and keyless, no sign-up; calls rate-limited per IP

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Pricing model

free

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Pricing

Free, public open-data API, no ads, no paywall; source code on GitHub (Apache-2.0)

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Rate limits

300 requests per minute per IP; exceeding returns HTTP 429, every response carries RateLimit headers

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OpenAPI spec

https://infranode.dev/actions/openapi.json

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MCP server

https://mcp.infranode.dev/mcp

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